SALICACEAE. — SALIX 129 
same hybrid. The type was collected in Hondo, near Mt. Indonosan, July 22, 
1887 (No. 21; ex Herb. Bot. Gard. Tokyo; ex von Seemen); see p. 131. 
A rather distinct form seems to be Wilson’s No. 7104 from the same locality 
as No. 7103. Here the fruits with their short bracts and their short broad gland 
much more resemble S. vulpina Andersson. Most of the leaves are distinctly whit- 
ish beneath, and the young ones bear a rusty tomentum on the lower surface. The 
catkins are very long, measuring from 6 to 8 cm. in length, nearly sessile, and re- 
semble those of S. japonica Thunberg, especially var. Oldhamiana, which can, 
however, be distinguished at once by its longer bracts with whitish (not rusty) 
pubescence. 
The specific name is derived from xdxtoros, useless. 
_ 90. Salix daiseniensis Seemen, Salic. Jap. 65, t. 15, fig. a-p (1903). — Léveillé 
in Bull. Acad. Int. Géogr. Bot. XIV.210 (1904); XVI. 145, 146 (1906).— Koidzumi 
in Tokyo Bot. Mag. XXVII, 266 (1913). 
Salix vulpina, var. daiseniensis Koidzumi in Tokyo Bot. Mag. XXVII. 90 
(1913). 
JAPAN. Hondo: prov. Hoki, Mt. Daisen, May 20, 1899, U. Faurie (Nos. 
3708, 3709, types; c' and 9, ex Seemen); prov. Itachi, Tsukuba, April 14, 1909 (ex 
Herb. Sakurai); prov. Rikuchu, Amibari, August 1909 (ex Herb. Yokohama 
Nursery Co.; with fruits); same locality, April 1, 1911 (ex Herb. Sakurai). Hok- 
kaido: Rebunziri, mountains, August 1, 1899, U. Faurie (No. 3712; with ? ex 
von Seemen). 
A doubtful species. According to von Seemen the catkins of S. daiseniensis 
resemble those of S. Buergeriana Miquel, but they appear with the leaves, and the 
& flowers have one or two stamens, while the flowers of S. Buergeriana are preco- 
cious and the c? flowers have only one stamen. Koidzumi first made S. daiseni- 
ensis a variety of S. vulpina Andersson, but later kept it distinct and placed it in 
the sect. Phylicifoliae, saying: "Species habitu S. Sieboldianae Blume sat similis 
sed foliis tenuioribus; filamentis liberis fere glabris diagnoscenda." The specimen ex 
Herb. Sakurai from the type locality has glabrous ovaries. So far as I can judge, 
S. daiseniensis may be a hybrid between one of the forms of S. vulpina Anders- 
son and S. Sieboldiana Blume. I am not, however, quite sure if all the specimens 
above represent such a hybrid. See also S. ampherista Schneider. 
91. Salix amnicola Wolf in Act. Hort. Petrop. XXVIII. 31 (1911). j 
NORTHEASTERN ASIA. Maritime prov.: distr. Khabarovsk, “ in alveo 
amnis Amur,” May 19, 1910, N. Kuznetzov (No. 38, type; 9 ex Wolf). 
The leaves of this species are, according to Wolf, lanceolate or elliptic-lanceolate, 
entire, from 2.5 to 5.4 cm. long and about 1$ as broad, somewhat pubescent on 
both sides and glaucous beneath. The female catkins are sessile and appear with 
the leaves; they are cylindric and 3 to 4 cm. long, the bracts are lingulate and 
acute or obtusish; the ovaries are shortly stipitate, silky, and bear a style being 
a little longer (14-12 of the ovary) than the pedicel; the stigmas are bilobate or 
bipartite and about as long as the style; the gland is as long as the pedicel, 
which in the fruit becomes J4 longer than the gland. 
Sect. 16. HASTATAE Borrerin Hooker, Brit. Fl. 433 (1830); in Loudon, Arb. 
Brit. 1592 (pro parte) (1838). — Andersson in Svensk. Vetensk. Akad. Handl. VI. 
157 (Monog. Salic.) (1867); in De Candolle, Prodr. XVI. pt. 2, 251 (pro parte) 
sime Seemen, Salic. Jap. 18 (1903). — Koidzumi in Tokyo Bot. Mag. 
